Title: Source Map Error for libphonenumber
Last modified: August 27, 2024

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# Source Map Error for libphonenumber

 *  Resolved [nwjeff](https://wordpress.org/support/users/nwjeff/)
 * (@nwjeff)
 * [1 year, 7 months ago](https://wordpress.org/support/topic/source-map-error-for-libphonenumber/)
 * In the browser console (Firefox on Windows 11) I am seeing this error message
   about a Source map error when previewing a new form I created that has a phone
   number field:
 * 22:59:54.879 Source map error: request failed with status 404
   Resource URL: [https://mustangsnorthwest.com/wp-content/plugins/forminator/assets/js/library/libphonenumber.min.js?ver=1.34.1](https://mustangsnorthwest.com/wp-content/plugins/forminator/assets/js/library/libphonenumber.min.js?ver=1.34.1)
   Source Map URL: libphonenumber-min.js.map
 * Is that a typo in the Source Map URL that is causing the error?
 * Data storage for the app is set to “Default”. Running latest version of Forminator
   and WP.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Support [Laura – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support8/)
 * (@wpmudev-support8)
 * [1 year, 7 months ago](https://wordpress.org/support/topic/source-map-error-for-libphonenumber/#post-17977572)
 * Hi [@nwjeff](https://wordpress.org/support/users/nwjeff/)
 * I hope you’re well today!
 * Source maps are special files to help developers see content of minified JS files
   easily in browser. They aren’t used for anything and aren’t needed in any way
   to make plugin work. Missing .map file will also not cause any issues whatsoever
   and will not affect how plugin works.
 * Furthermore, such error is happening only when browser console is active. It’s
   not that it’s “invisible” when browser console is closed but it is literally 
   happening only with it being open.
 * .map files aren’t also “mandatory” files. You can ignore safely ignore it completely.
 * Kind regards,
    Adam
 *  Thread Starter [nwjeff](https://wordpress.org/support/users/nwjeff/)
 * (@nwjeff)
 * [1 year, 7 months ago](https://wordpress.org/support/topic/source-map-error-for-libphonenumber/#post-17977583)
 * Thank you for the quick answer. I was not sure if that would cause any problems,
   but I guess not.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Source Map Error for libphonenumber’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [nwjeff](https://wordpress.org/support/users/nwjeff/)
 * Last activity: [1 year, 7 months ago](https://wordpress.org/support/topic/source-map-error-for-libphonenumber/#post-17977583)
 * Status: resolved